105051821443 has 2 divisors, whose sum is σ = 105051821444. Its totient is φ = 105051821442.

The previous prime is 105051821393. The next prime is 105051821447. The reversal of 105051821443 is 344128150501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105051821443 - 2⁹ = 105051820931 is a prime.

It is a super-2 number, since 2×105051821443² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105051821399 and 105051821408.

It is not a weakly prime, because it can be changed into another prime (105051821447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52525910721 + 52525910722.

It is an arithmetic number, because the mean of its divisors is an integer number (52525910722).

Almost surely, 2^105051821443 is an apocalyptic number.

105051821443 is a deficient number, since it is larger than the sum of its proper divisors (1).

105051821443 is an equidigital number, since it uses as much as digits as its factorization.

105051821443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 105051821443 its reverse (344128150501), we get a palindrome (449179971944).

The spelling of 105051821443 in words is "one hundred five billion, fifty-one million, eight hundred twenty-one thousand, four hundred forty-three".